Centrifugal fan or pump.



J. W. KELLOGG. GBNTRIFUGAL PAN 0R PUMP. APPLICATIONy FILED APRA, 1908.

Patented Feb. 9, 1909.l

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J. W. KELLOGG. GENTRIFUGAL PAN 0R PUMP. APPLICATION FILED APR. 4, 190s.

@ 2, 1 33'. Patented Feb. 9, 1909.

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from the hooks 1l. By now removing the bolts 9 the Wheel is freed fromthe spider and can be reversed so that the blades 'Will slo e in theopposite direction (see Fig. 4). The other annulus 7 is then bolted tothe disk 4 and the heads on the rods 10 placed in the hooks 11 on theannulus which previously had been bolted to t-he spider. The casinoP isthen placed in position so that the outlet opening 23 is on the right,and the inlet plate 17 and the fiat plates 22 are placed on theopposit'e sides of the easing from which they Were removed, thus leavingthe plates in the same relative position with respect to the spider,which as not been moved. The rotation of the Wheel in the oppositedirection to that in which it rotated betore,proV duces pressure at theoutlet opening.

I have described my invention as being particularly ap licable to ians,but it is evident to those s rilled in the art that it is also equallyapplicable to centritugalpunips and the like. I further desire it to beunderstood that my invention is not'limited to the` particularconstruction shown and described and I aim in the appended claims tocover all l do not depart from the modifications Whic spirit of myinvention.

What I claim as new and desire to securev ing a spider secured to thepower shaft, said spider aving a radially extending hanged portion, anda separable fan Wheel comprising blades secured at their ends to annuli,

said annulibeing so constructed and arranged that either may befastenedto said flanged portion, whereby' the Wheel may be arranged forope-ration in either direction of rotation.

Apoiver driven fan or pump comprising' l a spider secured to the powershaft, said spider having a radially extending flanged portion-and boltholes near its peri hery, and a separable fan Wheel com rising ladessecured at their ends to ann i, said annuli 1 having siniilarlv locatedbolt holes which will register with the holes in the flanged portion,and bolts for fastening either of sa'id annuli to said tlanged portion,whereby the Wheel may be arranged for operation in either direction.

3. A power driven fan or pump comiprisin a spider secured to the powersha t, sai

spider having a radially extending iianged portion and bolt holes nearits peri hery, and a separable fan Wheel com risinfr lades secured attheir ends to annu i, said annuli having similarly located bolt holeswhich will register with the holes in the fianged portion, bolts forfastening either of said annuli to said' flanged portion, whereby thewheel may be arranged forA operation in either direction, and tie rodsfastened at one` end to said spider and removably secured at their otherend to the outside annulus.

4. A power driven fan or pump comprising a spider secured to the powershaft,

said spider having a radially extending flanged portion, a separable fanWheel coni` prising blades secured at their ends to annuli, said annulibeing so constructed and arranged that either may be fastened to saidflanged portion, whereby the vrheel may be arranged for operation ineither direction of rotation,

hooks on the inside of both annuli, and tie rods fastened at one end to,said spider and arranged to engage the hooks on .the outside annulus. y

In witness whereof, I have hereunto set my hand this second day ofapril, 1908.

JAMES IY. KELLOGrG.y

' l'itnesses:

HELEN Onronn, EDWIN L. Rien.

